Revisiting cosmic anisotropy with the Pantheon+ compilation

arXiv:2606.22302 · astro-ph.CO · Submitted 2026-06-21 · Read on arXiv

Yong Zhou, Dong Zhao

astro-ph.CO

Submitted: 2026-06-21

Comments: 16 pages, 11 figures, 3 tables

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Anisotropy — 64× in this paper · explained in 3 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Degeneracy — 2× in this paper · explained in 3 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Homogeneity — 1× in this paper · explained in 2 episodes
• Markov Chain Monte Carlo — 1× in this paper

Sources

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Power asymmetry in WMAP and Planck temperature sky maps as measured by a local variance estimator
• On the significance of power asymmetries in Planck CMB data at all scales
• Planck 2018 results. VII. Isotropy and Statistics of the CMB
• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Parameter Results
• Anomalous parity asymmetry of the Wilkinson Microwave Anisotropy Probe power spectrum data at low multipoles
• Planck 2018 results. VI. Cosmological parameters
• Anomalous parity asymmetry of WMAP power spectrum data at low multpoles: is it cosmological or systematics?
• Asymmetries in the CMB anisotropy field
• Testing the cosmological principle of isotropy: local power spectrum estimates of the WMAP data
• New constraints on Parity Symmetry from a re-analysis of the WMAP-7 low resolution power spectra
• Lack of angular correlation and odd-parity preference in CMB data
• Probing Cosmological Isotropy With Type IA Supernovae
• Directional dependence of CMB parity asymmetry
• Probing the isotropy of cosmic acceleration traced by Type Ia supernovae
• Mapping extreme-scale alignments of quasar polarization vectors
• The significance of anisotropic signals hiding in the type Ia supernovae
• Evidence for the alignment of quasar radio polarizations with large quasar group axes
• Testing the isotropy of the Universe by using the JLA compilation of type-Ia supernovae
• Is there Correlation between Fine Structure and Dark Energy Cosmic Dipoles?

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